List of Important Days in April 2021: We have collected a list of Important Days observed in April 2021 along with their theme if any. You can check out the list below:
Important Days in April 2021
| Date | Day | 2021 Theme/Extra Info |
| 02 April | World Autism Awareness Day | “Inclusion in the Workplace: Challenges and opportunities in a Post-Pandemic World” |
| 02 April | International Children’s Book Day | “The Music of Words.” |
| 04 April | International Day for Mine Awareness and Assistance in Mine Action | “Perseverance, Partnership, and Progress” |
| 05 April | National Maritime Day | 2021 marks 58th edition of NMD |
| 06 April | International Day of Sport for Development and Peace | |
| 05 April | United Nations International Day of Conscience | “Let Conscience Light up our World” |
| 07 April | World Health Day | “Building a fairer, healthier world for everyone” |
| 07 April | International Day of Reflection on the 1994 Rwanda Genocide | |
| 09 April | CRPF Valour Day | Also known as Shaurya Diwas 2021 marks 56th CRPF Valour Day. |
| 10 April | World Homeopathy Day | “Homoeopathy – Roadmap for Integrative Medicine” |
| 11 April | World Parkinson’s Day | |
| 11 April | National Safe Motherhood Day | |
| 12 April | International Day of Human Space Flight | |
| 13 April 2021 | 37th Siachen Day | On 13 April 1984, the Indian Army launched ‘Operation MEGHDOOT’ to secure Bilafond La and other passes on the Saltoro Ridgeline, from Pakistani aggression. |
| 13 April | International Turban Day | |
| 14 April | Ambedkar Jayanti | Ambedkar Jayanti ( also known as Bhim Jayanti) commemorates the birth anniversary of Babasaheb Dr. Bhim Rao Ambedkar (Father (chief architect) of the Indian Constitution) who was born on 14 April 1891. |
| 14 April | World Chagas Disease Day | |
| 15 April | World Art Day | |
| 16 April | World Voice Day | “ONE WORLD|MANY VOICES” |
| 16 April | Save the Elephant Day | |
| 17 April | World Hemophilia Day | “Adapting to Change: Sustaining care in a new world” |
| 18 April | International Day For Monuments and Sites | “Complex Pasts: Diverse Futures” |
| 19 April | World Liver Day | |
| 20 April | UN Chinese Language Day | |
| 21 April | National Civil Services Day | |
| 21 April | World Creativity and Innovation Day | |
| 22 April | International Mother Earth Day | “Restore Our Earth” |
| 23 April | World Book Day | SHARE A STORY |
| 23 April | UN English Language Day & UN Spanish Language Day | |
| 23 April | International Girls in ICT Day 2020 | “Connected Girls, Creating Brighter Futures” |
| 24 April | National Panchayati Raj Day | |
| Fourth Saturday of April (24 April 2021) | World Veterinary Day 2021 | “Veterinarian response to the COVID-19 crisis” |
| 24 April | World Day for Laboratory Animals | |
| 24 April | International Day of Multilateralism and Diplomacy for Peace | |
| 25 April | World Malaria Day | “Reaching the zero malaria target” |
| 25 April | International Delegate’s Day | |
| 26 April | World Intellectual Property Day | “Intellectual property and small businesses: Taking big ideas to market” |
| 26 April | International Chernobyl Disaster Remembrance Day | |
| 28 April | World Day For Safety And Health At Work | “Anticipate, prepare and respond to crises – Invest Now in Resilient Occupational Safety and Health Systems” |
| 28 April | Workers’ Memorial Day | “Health and Safety is a fundamental workers‘ right” |
| 29 April | International Dance Day | “Purpose of dance” |
| 30 April | International Jazz Day |
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